Paul R. Gregory Roy J. Ruffin <br/><br/>
Principles of macroeconomics 

 -  England  Scott, Foresman & Co  1983 
 - 416p  HB 
 - Principles of macroeconomics .
<br/><br/><br/>En 
<br/><br/><label>Subjects--Personal Names: </label><br/>Estatistics
<br/><br/><label>Dewey Class. No.: </label>330  / RUF